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ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#33313 | #4236. Triangular Logs | flower_and_qingyu# | RE | 4ms | 50496kb | C++23 | 2.8kb | 2022-05-31 11:37:28 | 2022-05-31 11:37:28 |
Judging History
answer
#include <bits/stdc++.h>
const int N = 1e6 + 50;
inline int lc(int o) { return o << 1; }
inline int rc(int o) { return o << 1 | 1; }
struct rect_t {
int x1, y1, x2, y2, id;
rect_t (int x1, int y1, int x2, int y2, int id) : x1(x1), y1(y1), x2(x2), y2(y2), id(id) {
}
inline bool operator<(const rect_t &rhs) const {
return x2 < rhs.x2;
}
};
struct pt {
int x, y, h;
pt (int x, int y, int h) : x(x), y(y), h(h) {
}
inline bool operator<(const pt &rhs) const {
return x < rhs.x;
}
};
std::vector<pt> vec[N << 1];
void modify(int o, int l, int r, int p, pt val) {
vec[o].push_back(val);
if (l == r) {
return;
}
const int mid = l + r >> 1;
if (p <= mid) modify(lc(o), l, mid, p, val);
else modify(rc(o), mid + 1, r, p, val);
}
void take(int o, int l, int r, int ql, int qr, int lim, auto &ret) {
if (ret.size() >= 50)
return;
if (ql <= l && r <= qr) {
for (int i = (int)(vec[o].size()) - 1; i >= 0; --i) {
auto &pt = vec[o][i];
ret.push_back(pt);
if (pt.x < lim)
continue;
if (ret.size() >= 50)
return;
}
}
else {
const int mid = l + r >> 1;
if (ql <= mid) take(lc(o), l, mid, ql, qr, lim, ret);
if (qr > mid) take(rc(o), mid + 1, r, ql, qr, lim, ret);
}
}
int main() {
int n, q;
std::cin >> n >> q;
std::vector<pt> points;
std::vector<rect_t> rects;
std::vector<int> buc;
for (int i = 0; i < n; ++i) {
int x, y, h;
std::cin >> x >> y >> h;
buc.push_back(y);
points.emplace_back(x, y, h);
}
std::sort(points.begin(), points.end());
std::vector<int> ans(q);
for (int i = 0; i < q; ++i) {
int x1, y1, x2, y2;
buc.push_back(y1);
buc.push_back(y2);
std::cin >> x1 >> y1 >> x2 >> y2;
rects.emplace_back(x1, y1, x2, y2, i);
}
std::sort(buc.begin(), buc.end());
buc.erase(std::unique(buc.begin(), buc.end()), buc.end());
auto find = [&](int x) {
return std::lower_bound(buc.begin(), buc.end(), x) - buc.begin() + 1;
};
for (auto &[x, y, h] : points) y = find(y);
for (auto &[x1, y1, x2, y2, id] : rects) y1 = find(y1), y2 = find(y2);
std::sort(rects.begin(), rects.end());
int p = 0, m = buc.size();
for (auto [x1, y1, x2, y2, id] : rects) {
while (p < points.size() && points[p].x <= x2) {
modify(1, 1, m, points[p].y, points[p]);
++p;
}
std::vector<pt> ret;
take(1, 1, m, y1, y2, x1, ret);
std::sort(ret.begin(), ret.end(), [&](const pt &a, const pt &b) {
return a.h < b.h;
});
for (auto pt : ret) {
assert(x1 <= pt.x && pt.x <= x2);
assert(y1 <= pt.y && pt.y <= y2);
}
bool OK = false;
for (int i = 0; i + 2 < ret.size(); ++i) {
if (ret[i].h + ret[i + 1].h > ret[i + 2].h) {
OK = true;
}
}
ans[id] = OK;
}
for (int i = 0; i < q; ++i) {
std::cout << ans[i] << '\n';
}
}
詳細信息
Test #1:
score: 100
Accepted
time: 4ms
memory: 50496kb
input:
9 5 1 3 3 2 3 1 3 3 4 1 2 1 2 2 5 3 2 9 1 1 2 2 1 6 3 1 5 1 1 1 2 1 1 2 2 1 1 1 3 1 2 3 2 1 1 3 3
output:
0 1 0 0 1
result:
ok 5 lines
Test #2:
score: -100
Dangerous Syscalls
input:
481 1 8 6788 8975 24 6552 2668 26 7948 4730 40 531 9805 110 1914 1916 164 7073 3371 165 6293 7756 170 9946 2003 179 9654 1700 215 6447 2229 221 3149 3030 242 1999 6843 242 5764 3163 249 3716 8634 250 6801 9317 260 2741 4273 282 5436 4836 284 3951 6483 288 4812 76 375 9004 5492 380 5627 5929 391 6385...